Combined hanger and driving apparatus for operating sewing-machines



(No Model.)

G. M. RICHARDSON.

GOMBINBD HANGER AND DRIVING APPARATUS FOR OPERATING SEWING MACHINES.

Patented Sept. 16, 1884.

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UNITE STATES A'IENT Erica.

COMBINED HANGER AND DRIVING APPARATUS FOR OPERATING SEWING-MACHINES.

SPECIFICATION forming part ofLetters Patent No. 305,109, dated September16, 1884. Application filed August 7,-1884. (N0 model.)

To all whom it may concern.-

Be it known that I, GEORGE M. RICHARDSON, a citizen of the UnitedStates, residing at Milford, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements in aCombined Hanger and Driving Apparatus for Operating Sewing and otherMachines by Power; and I declare the following to be a description ofmysaid invention, sufficiently full, clear, and exact to enstarting ofsewing-machine's and other light machinery, when operated in connectionwith a power-shaft located beneath the bench or table upon which saidmachines are supported; also, to render said apparatus simple,convenient, and efficient in its mak e, maintenance, and operat.ion,andreadily adjustable to bring all the parts into proper working relationwith each other. These objects I attain by the mechanism shown, andhereinafter described, the particular-subject-matter claimed beinghereinafter specified.

In the drawings, Figure 1 is a side view of my improved mechanism asapplied to use. Fig. 2 is a front view of the same. Fig. 3 is a top planView. Fig. 4=is a plan or section showing the lower part of thesupporter; and Fig. 5'is a sectional view showing the de-,

pressing frame, friction wheel brake, and spring on a somewhat largerscale.

In referring to parts, A indicates the base and column of the standardor hanger, formed with a vertical spindle, a,- rigidly fixed in itsupper end. a

B indicates a vertically-adj us'table frame or bracket having ears I),that slide over the spindle a, and are held thereto by set-screws, asindicated.

0 indicates a collar fitted on the spindle a below the frame B, andgiving positive support therefor. Its lower end is fitted with a spiralbearing, a, on the end of the column A. It also is provided with a broadupwardly- D denotes the journal-box for supporting the power-shaft E.Said box is supported on the frame or bracket B by means of ahorizontally-arranged stud, d, which passes through ing-wheel G parallelwith the shaft E. As in dicated, stud f may be extended both right andleft, if desired, for a double driving mechanism.

H indicates avertically-swinging open-centered frame fulcrumcd or hingedloosely upon the stud f, so that its forward end can move up and down.

I denotes the friction-wheel fixed on a short shaft J, that is journaledon the frame H, parallel with the stud f and shaft E, and havingconnected to its outer end the pulley or wheel K, upon which runs thebandK, that operates the sewing-machine or other operated machine, whichis not herein shown. The wheel I is made with a facing, i, of leather orother suitable material, for giving sufficient friction upon the face ofthe wheel G for driving the sewing-machine or operated mechan- L denotesa semicircle of metal arranged above the wheel I, which serves as abrake for stopping the shaft J and devices operated thereby. The bralepiece is supported rigidly in connection .with the studf, so as tostand stationary at a definite position inrolation to the wheel G, sothat" when the wheel I is brought into contact with the wheel G it .willbe cleared from the brake, but when raised from the wheel G will bebrought into contact with the under surface of the brake, which surfaceis made 'on a curve of slightly greater radius than the periphery of thefriction-wheel. A spring, m, is secured to the forward end of the frameH, as indicated. The end of said spring, resting upon the forward partof the brake-piece L, serves to turned flange, c, that serves as adrip-cup for I keep the frame H elevated, so that the wheel theshaft-bearings.

l I is clear of the drivingwheel G and in contact with the brake, exceptwhen the force of said spring in is overcome by the operator whendepressing the treadle N or otherwise forcing down the frame H. The endof the spring on may be fitted to the part L with a notch or lug, so asto confine the parts from working out of place laterally. The treadle Nis connected to the frame H by a chain, 0, in the present instanceattached tothe end of an adjustable bar, P, that is secured to the frameH, and which permits variation of the leverage. If preferred, however,the chain could be connected direct to the forward end of frame H. Thetreadle N is pivoted to a stand or car, It, bolted to the floor, and ishung in a manner to be turned up out of the way to facilitate sweepingbeneath the tables, as indicated by dotted lines in Fig. l.

s 8 denote set-screws for retaining the parts at positions ofadjustment.

For use with double tables having two rows of machines, to which theoperators sit facing each other, the apparatus can be made with twodriving-wheels, G, and operating mech anisms, one at the right and oneat left of the standard A, the stud f being made of sufficient lengthand projected at the opposite side of the arm F, so as to support aframe, H, brake L, and friction-wheel devices similar to those shown,but facing in the opposite direction, thus affording two similaroperating devices on a single standard, A.

The operator for starting the machine depresses the treadle N and frameH, bringing the friction-wheel I into contact with the drive-wheel,which gives motion thereto and operates the shaft J and bandwheel K.Then when the operates releases the treadle the spring m causes theelevation of the frame H and brings the wheel I against the brakepieceL, and thus instantly stops the machine.

The frame H may be depressed by hand or by other means than the treadleN, if in any case desirable or more convenient. Vertical andlaterally-rotative adjustment can be effected by raising the bracket Bon the spindle a. By raising the arm E at its attachment to the box Dthe frame H, which carries the friction-wheel I, can be set nearer to orfarther from the wheel G. The brake L can be adjusted to or from thewheel I by loosening its set-screws s and slightly turning the piece onthe stud f. The leverage can be varied by shifting the position of bar Pon the frame H, and other desirable adjustments for adapting theapparatus for use in different situations can be. conveniently effectedby means shown.

The frame H, with its pivot-stud f, friction and band wheels I and K,and brake device, may in some cases be employed in connection withhangers or journal-boxes of other construction than the adjustable formherein shown, and I desire to include such use as within the scope of myinvention.

WVhat Iclaim as of my invention, and desire to secure by Letters Patent,is

1. The standard composed of the column A and spindle a, in combinationwith the adjustable bracket B, with ears I), and the journalbox D,supported thereon by the stud d, as shown and described.

2. The column A, having'the spiral top end and central spindle, a, incombination with the adjustable brackets B, with ears I), embracing saidspindle, the journal-box D, with stud cl, supported in said bracket, andthe flanged collar 0, surrounding the spindle a, and having a spiral endresting upon the spiral top of said column, as and for the purpose setforth.

3. The eombinatiomwith the standard and journalbox which supports themain shaft E, of the adjustable arm F, carrying the pivot stud f, thefriction wheel I, the swinging frame H, the band-wheel K, and brakedevices, substantially as and for the purposes set forth.

4. The combination of the adjustable hanger or standard, the power-shaftE, with its driving-wheel G, the swinging frame H, supported by arm Fand stud f, the shaft J, with friction-wheel I, and band-wheel K,mounted on said frame, the brake-piece L, and the spring on,substantially as and for the purposes set forth.

5. The combination of the shaft E, the drive wheel G, the swing-frame H,the frictionwheel I, the brake L, the spring at, the trcadle N, andconnection 0, substantially as and for the purpose set forth.

6. The combination, with the swinging frame carrying the shaft J,friction-wheel I, and band-wheel K, of the adjustable bar I with thetreadle-connection, as and for the pur pose set forth.

7. The combination of the stationary supporting-stud f, the movableframe H, loosely pivoted thereon, the wheel I, mounted in said frame,the stationary brake L, rigidly attached to said stud, and the spring m,attached to said frame and arranged to press against said brake-piece,substantially as set forth.

8. The combination of the column A with spindle a, the bracket-frame B,journal-bearing D, arm F, stud f, swing-frame H, brake L, spring m,shafts E and J, wheels G, I, and K, treadle P, and chain 0,substantially as and for the purpose set forth.

Witness my hand this 30th day of July A. D. 1884.

GEORGE M. RICHARDSON.

Witnesses:

OHAs. H. BURLEIGH, S. R. BARTON.

IIO

